We had a chance to test and compare two models: ViewSonic PJD5134 vs Optoma HD27 and this review should help people who are looking for a good projector. Based on our rating, PJD5134 has a total rating of 6.3 out of 10 versus 7 for HD27.
Advantages ViewSonic PJD5134 over Optoma HD27
Lower power consumption, 250 W vs 260 W
Advantages Optoma HD27 over ViewSonic PJD5134
Bigger projection screen size: 30-300 inch vs 24-300 inch
Better brightness: 3200 vs 3000 lumens
Lower noise level, 26 dB vs 32 dB
Longer lamp life (normal mode): 5000 vs 4500 hours